... , N Fixed Pitch Tunnel ThrusterStern Thruster:1.Diameter 500-2100mm.3.Eletric or engine drive.4.CCS ,BV ,ABS,NK, etc ... /1151700/845700/845600/724600/724469.1/566469.1/566384/463332.3/401307/370301/247211/257Propeller Dia. mm5006007008009001000110013001480165020002400Max Thrust10/11.214.5 ...